Key indicators: single-crystal X-ray study; T = 120 K; mean (C-C) = 0.003 Å; R factor = 0.047; wR factor = 0.127; data-to-parameter ratio = 17.1.The phenyl and naphthyl ring systems are at an angle of 47.57 (9) in the title compound, C 16 H 12 O 3 S. Only weak C-HÁ Á ÁO interactions are present in the crystal structure. Related literatureFor a detailed account of the molecular and supramolecular architectures of aromatic sulfonates, see Manivannan et al. (2005) and references cited therein. For related literature, see: Alford et al. ExperimentalCrystal data C 16 H 12 O 3 S M r = 284.32 Orthorhombic, Pbcn a = 11.8910 (11) Å b = 10.8909 (12) Å c = 20.958 (2) Å V = 2714.1 (5) Å 3 Z = 8 Mo K radiation = 0.24 mm À1 T = 120 (2) K 0.24 Â 0.16 Â 0.08 mm Data collection Bruker SMART CCD 1K area-detector diffractometer Absorption correction: multi-scan (SADABS; Sheldrick, 1998) T min = 0.814, T max = 1.000 (expected range = 0.922-0.951) 19056 measured reflections 3917 independent reflections 2262 reflections with I > 2(I) R int = 0.089

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